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This paper presents a new pixel circuit with all-p-type TFTs for AMOLED displays. The proposed pixel circuit can effectively compensate for the threshold-voltage shift of the driving TFT, the degradation of OLED and the parasitic resistance of the power supply line. And thus, the brightness uniformity of AMOLED displays can be enhanced. It is shown that the nonuniformity of the OLED current with an...
In a plasma display panel (PDP), ramp pulse is used for the reset operation. In this case, the stability of ramp slope is very important because the variation of ramp slope leads to the reset failure. However, the ramp slope is affected by the image load and operation temperature. In this paper, the variation of ramp slope is analyzed and a new ramp driver circuit is proposed. In the proposed driver...
Recently, much research has been performed to guarantee viewer’s safety in watching stereoscopic 3D videos. Most of them focused on individual content factors causing viewer discomfort. This paper extends the kinds of content factors, and focuses more on the composite, rather than individual, factors. To analyze them, a subjective test for discomfort is performed for four stereoscopic 3D videos. Also,...
In this study, the effects of ambient illuminance and light source on participants’ reading performance and visual fatigue during a long reading task were investigated using three electronic paper displays. Reading on electronic paper displays was also compared with reading on paper. In Experiment 1, 100 participants performed a reading task where the display area for the text was equated for the...
To obtain a black matrix (BM) with high optical density (OD) and low dielectric constant, graphene oxide (GO) was prepared from synthetic graphite oxide and then incorporated into the conventional carbon black (CB) pigment to fabricate black matrix films. The introduction of insulating GO effectively lowered the dielectric constant of carbon black-based BM, but maintained the high optical density...
Large screen display technology has in recent years become available to industrial control rooms as a supplement to smaller displays. Due to the greater complexity and scale, measured in meters, not inches, it is now a challenge to design for readability and Situation Awareness. Information Rich Design is a design concept for large displays used in many real-life complex processes for almost a decade...
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